Valve-gear.



Patented June 5', I900.

I P I Z J INVENTOR M4. W.

G. A. ANDERSON.

VALVE GEAR (Application filed Sept. 80, 1899.)

WITNESSES Z 4 (No Model.)

Attorney Tm: NORRIS PETiRS m. mm'du'mo" wnsnmarom u. c

NITED STATES PATENT FFIcE.

GUSTAF ARVID ANDERSON, OF WAYNESBOROUGH, PENNSYLVANIA, AS- SIGNOR TO THEGEISER MANUFACTURING COMPANY, OF SAME PLACE.

VALVE-GEAR.

SPECIFICATION forming part of Letters Patent No. 650,890, dated June 5,1900. Application filed September 30, 1899. Qerial No. 732,172. (Nomodel.)

To all whom it may concern:

Be it known that I, GUSTAF ARVID ANDER- soN, a citizen of the UnitedStates, residing at Waynesborough, in the county of Franklin and Stateof Pennsylvania, haveinvented certain new and useful Improvements inValve- Gears; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to valve-gears provided with shiftingeccentrics;and it consists in the novel construction and combination of the partshereinafter fully described and claimed.

In the drawings, Figure 1 is a plan view of the valve-gear. Fig. 2 is aside View of the valve-gear. Fig. 3 is a cross-section taken on the linex (I? in Fig. 1. Fig. 4 is a longitudinal section through thereversing-sleeve.

A is the engine-frame.

B is the crank-shaft, journaled in the frame, and a is the crank-plate.

O is a carrier for the eccentric, secured on the shaft B.

D is the eccentric, which is slidable in the carrier crosswise of theshaft B. The eccentric-strap d is mounted on the eccentric and isprovided with an eccentric-rod d. The rod d is pivoted to an arm I) onthe rock-shaft c. The rock-shaft c has an arm a, which is pivoted to thevalve-spindle c. The rock-shaft is journaled in bearings in the frame.If desired, the rock-shaft can be dispensed with, and the eccentric canbe connected with the valve-spindle in anyother approved manner.

All the above parts are of approved construction, and the slidableconnection of the eccentric with its carrier is more fully shown in thepatent to myself, dated February 9, 1897, No. 576,751.

The eccentric D is provided with a laterally-projecting lug E, and thevalve is reversed by moving the center of the eccentric from one side ofthe center of the crank-shaft to the other. In the drawings theeccentric is shown in its middle position.

F is a reversing-sleeve which revolves with the crank-shaft and which isslidable longitudinally upon it. This sleeve is preferably splined tothe crank-shaft.

G is a lever, one end of which is pivoted to the lug E on the eccentricby a pin g. The other end of the lever G is pivoted to fulcrum- 5 5links H by a pin 9, and the fulcrum-links are pivoted to a lug h on oneside of the sleeve F by a pin h, so that the lever G can movelongitudinally of the shaft 13.

I represents links which are pivoted at one end to the sleeve E by pins1' and which are'pivoted at the other end by a pin 2" to the middle partof the lever G. The links I are longer than the fulcrum-links and arearranged to clear them. The eccentric is moved crosswise of the shaftwhen the reversing-sleeve is slid longitudinally on it by means of thelinks I.

The links I are the actuating-links which move the lever G, and thelever G has a movable fulcrum in the pin g, said pin being carried bythe fulcrum-links h. By the use of this device very little side strainis thrown on the eccentric in the act of movingit across the shaft, sothat it slides very freely, and this result is accomplished by the useof very few working parts and connections. Single links I and h might beused; but it is preferable to arrange them in pairs.

J is the reversing-lever for sliding the reversing-sleeve on the shaft.One end of the lever J is pivoted to a fulcrum-link j by a pin j. Thelinkj is pivoted to a bolt or pin 7a, which passes through an elongatedhole In in the frame A. The elongation of the hole k permits theposition of the fulcrum-pin j to be adjusted, so that the position ofthe reversing-lever can be regulated. The free end portion of thereversing-lever is provided with any approved catch mechanism forretaining it in position. 0

The reversing-sleeve F is provided with a flange or shoulder f, and 'mis a ring provided with a recess m, which engages with one end of thesleeve F. Anumber of thin annular plates at are arranged in the recessm, and p are bolts for securing the ring on to the sleeve.

P is a ring arranged between the ring m and flange f, and p are pinswhich pivotally con nect the ring or block P with the loop of thereversing-lever. When the sides of the ring or block P become worn, oneor more of the thin plates at are removed to permit the ring m to be setup closer to the flange f.

\Vhat I claim is- 1. 111 a valve-gear, the combination, with a shaft,and an eccentric slidable crosswise of it; of a slidablereversing-sleeve, a lover provided with a movable fulcrum and pivotallyconnected to the said eccentric, and a fulcrum-link and anactuating-link each connected to the said sleeve and lever at differentpoints and constraining the said lever to slide the eccentric when thereversing-sleeve is moved longitudinally of the shaft, substantially asset forth.

2. In a valve-gear, the combination, with a shaft, and an eccentricslidable crosswise of it; of a reversing-sleeve slidable longitudinallyof the shaft, a lever provided with a movable fulcrum and pivoted to thesaid eccentric at one end, a pair of fulcrum-links pivoted to the saidsleeve and to the other end of the said lever, and a pair ofactuating-links longer than the fulcrum-links and pivoted to the saidsleeve and to the middle part of the said lever, substantially as setforth.

3. In a valve-gear, the combination, with a shaft, and an eccentricslidable crosswise of it; of a reversing-sleeve slidable longitudinallyof the shaft, a lever provided with a movable fulcrum and having itsends pivotally connected with the said sleeve and eccentricrespectively, and an actuating-link pivoted to the middle part of thesaid lever and to the said sleeve, substantially as set forth.

4. In a valve-gear, the combination, with a frame,a shaft journaledtherein,and a reversing-sleeve slidable longitudinally on the saidshaft; of a fulcrum-link, an adjustable pivot for the said linksupported by the said frame, and a reversing-lever pivoted to the otherend of the fulcrum-link and operatively connected with the said sleeve,substantially as set forth.

5. In a valve-gear, the combination, with a framc,a shaft journaledtherein,and a reversing-sleeve slidable longitudinally on the said shaftand provided with a flange; of a ring provided with a recess engagingwith one end of the said sleeve, removable plates arranged in the saidrecess, fastening devices for securing the said ring to the sleeve areversinglever pivotally connected to the frame, and a block pivoted tothe said lever and arranged between the said ring and flange,substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GUSTAF ARVID ANDERSON.

Witnesses:

DANIEL S. BEARD, JAMES E. MooRE.

